2220403140 has 72 divisors (see below), whose sum is σ = 6878551680. Its totient is φ = 579507264.

The previous prime is 2220403079. The next prime is 2220403181. The reversal of 2220403140 is 413040222.

2220403140 is a `hidden beast` number, since 2 + 220 + 403 + 1 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122770 + ... + 139689.

It is an arithmetic number, because the mean of its divisors is an integer number (95535440).

Almost surely, 2^2220403140 is an apocalyptic number.

2220403140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220403140 is an abundant number, since it is smaller than the sum of its proper divisors (4658148540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220403140 is a wasteful number, since it uses less digits than its factorization.

2220403140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262521 (or 262516 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2220403140 is about 47121.1538483514. The cubic root of 2220403140 is about 1304.5997098800.

Adding to 2220403140 its reverse (413040222), we get a palindrome (2633443362).

The spelling of 2220403140 in words is "two billion, two hundred twenty million, four hundred three thousand, one hundred forty".